<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>翻转卡片</title>
    <link rel="stylesheet" href="./demo.css" />
  </head>
  <body>
    <div class="container">
      <div class="card-container">
        <div class="card card-front">
          <img src="./img/01.jpeg" alt="" />
        </div>
        <div class="card card-back">
          <img src="./img/02.jpeg" alt="" />
        </div>
      </div>
    </div>
  </body>
</html>
